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Actually, Mozilla has the best DOM I know (I am not that familiar with Konqueror) - with the Gecko layout engine it uses probably the most W3-standard compliant and advanced engine there is.
In terms of Javascript implementation, IE (and Operah to a much lesser extent) have a long way to go when compared to Mozilla.
I don't have a link handy to prove my point - hope to provide it after the weekend.

It comes handy to remember that Javascript was not invented by Microsoft, but Netscape and that, just like CSS, the standards the W3 Consortium set years ago are only now being implemented and abided to.
Just because Mozilla is a relatively "new" browser, doesn't mean it has a buggy DOM-implementation or the like. On the contrary.

To prove my point, create a HTML-document containing:

<html>
<form>
<input type crash>
</form>
</html>

View the file in IE and it will crash the browser. Try it with other browsers and you may get an idea of why standards are important.

Actually, Mozilla has the best DOM I know (I am not that familiar with Konqueror) - with the Gecko layout engine it uses probably the most W3-standard compliant and advanced engine there is.
In terms of Javascript implementation, IE (and Operah to a much lesser extent) have a long way to go when compared to Mozilla.
I don't have a link handy to prove my point - hope to provide it after the weekend.

Sorry, I know this is a sensitive subject and it was not my intention to initiate a browser war type of discussion.

All I know is that from my own experience, whenever I try to implement standards compliant stuff, often enough it just doesn't quite look right in Mozilla and/or Firebird. Too much padding, borders missing top and left, floating elements that do not appear where they are supposed to, that kind of thing.

Could be that I have unknowingly become brain-washed by my bad habits over the years, that I am missing the gist somewhere.

But it is still a touchy area which needs some time before it even gets close to perfection, you have to admit.

Sorry, I know this is a sensitive subject and it was not my intention to initiate a browser war type of discussion.

It isn't my intent either, what I am trying to point out is that Mozilla and Mozilla Firebird are, in my view, superior to every browser I have seen because of a truly hierarchical DOM that other browsers (including IE) are still aspiring to achieve, great adherence to standards, scalability and development and integration of new ideas.

Of course those browsers aren't perfect, but they are a giant's leap further towards that goal.

Is this invaild old code, because this little snipplet doesn't work in firebird

Code:

var picture=document.image1; if (picture.left<400) picture.left=400;

what site has the best up-to-date js tutorials then?

left is a NS4 proprietary tag.

I am not very up-to-date on where good online javascript tutorials are, but I would have a look at some at www.webmonkey.com.